sight-hole in a sentence

Definition

SIGHT-HOLE: a small opening or window in a container or machinery that allows for visual inspection of internal conditions or levels.

The engineer inspected the sight-hole to ensure it was free of obstructions.
During the routine check, the technician peered through the sight-hole to gauge the fluid levels.
The sight-hole on the tank allowed us to monitor the contents without opening it.
She pointed out the sight-hole to her colleague, highlighting its importance in the maintenance process.
After the installation, the operator adjusted the sight-hole to improve visibility of the gauge.